The Lopez twins are going pro together.

Stanford sophomore Robin Lopez is joining his 7-foot brother Brook in entering the NBA draft.

The brothers made their announcement to The Associated Press on Monday through mother, Deborah Ledford.

It was expected that Brook would declare himself eligible for the NBA, but Robin was not so certain. They were prep stars in Fresno, Calif., and came to Stanford together. Now they will depart as a tandem, too.